Is it possible to build CubicSDR without GLX dependencies?

[ka2ddo]

I'm trying to access a remote SDR on a Raspberry Pi over VNC. However, trying to start the Raspbian distro's version of CubicSDR fails in the VNC server/client environment, complaining that it can't get the GLX version number over and over again; specifically,

./src/unix/glx11.cpp(589): assert "ok" failed: in GetGLXVersion(): GLX version not found

It works fine from a monitor plugged into the HDMI port on the Pi itself.

So, is it possible to build CubicSDR to not depend on GLX, so I can access it remotely?

[Dantali0n]

You could try removing --with-opengl from the wxWidgets configuration.

./configure --disable-shared --enable-monolithic --with-libjpeg --with-libtiff --with-libpng --with-zlib --disable-sdltest --enable-unicode --enable-display --enable-propgrid --disable-webkit --disable-webview --disable-webviewwebkit --prefix=`echo ~/Develop/wxWidgets-staticlib` CXXFLAGS="-std=c++0x"

To be able to test this you will have to follow the complete build guide on the wiki, you can't use the AppImage: https://github.com/cjcliffe/CubicSDR/wiki/Build-Linux

[vsonnier]

CubicSDR needs OpenGL in wxWidgets, simply because it is an OpenGL application. While it is definitly possible @ka2ddo, the correct way to do it in your case is to install SoapyRemote on the PI and leave the CubicSDR on your local computer, then access the PI distantly.

This would be more efficient than offloading the whole display through VNC, anyway.

[vsonnier]

Closing this, by lack of convsersation. There is actually 2 way of runing SDR with Pi:

• Runing CubicSDR on the Pi, provided you have configured OpenGL hardaware acceleration (ex : https://www.youtube.com/watch?v=dx_iEpcZsDs )
• Runing SoapyServer on the Pi to use it remotely on a separate CubicSDR instance through the SoapyRemote module. (see https://github.com/pothosware/SoapyRemote/wiki )

Both solutions have already been explained at length on existing CubicSDR issues, or elsewhere in the Internet.